AMD Ryzen 7 5800X3D | AMD EPYC 7281 | |
CPU comparisonAMD Ryzen 7 5800X3D or AMD EPYC 7281 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD Ryzen 7 5800X3D has 8 cores with 16 threads and clocks with a maximum frequency of 4.50 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 5800X3D was released in Q4/2020. The AMD EPYC 7281 has 16 cores with 32 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7281 was released in Q3/2017. |
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AMD Ryzen 7 (70) | Family | AMD EPYC (129) |
AMD Ryzen 5000 (14) | CPU group | AMD EPYC 7001 (12) |
4 | Generation | 1 |
Vermeer (Zen 3) | Architecture | Naples (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
AMD Ryzen 7 7800X3D | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 7 5800X3D has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 5800X3D is 3.40 GHz (4.50 GHz) while the AMD EPYC 7281 has 16 CPU cores and 32 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7281 is at 2.20 GHz (2.70 GHz). |
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AMD Ryzen 7 5800X3D | Characteristic | AMD EPYC 7281 |
8 | Cores | 16 |
16 | Threads | 32 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
3.40 GHz | Frequency | 2.20 GHz |
4.50 GHz | Turbo Frequency (1 Core) | 2.70 GHz |
4.20 GHz | Turbo Frequency (All Cores) | 2.70 GHz |
Memory & PCIeThe AMD Ryzen 7 5800X3D can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD EPYC 7281 supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 170.6 GB/s. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD EPYC 7281 |
DDR4-3200 | Memory | DDR4-2666 |
128 GB | Max. Memory | |
2 (Dual Channel) | Memory channels | 8 (Octa Channel) |
51.2 GB/s | Max. Bandwidth | 170.6 GB/s |
Yes | ECC | Yes |
4.00 MB | L2 Cache | -- |
96.00 MB | L3 Cache | 32.00 MB |
4.0 | PCIe version | 3.0 |
20 | PCIe lanes | 128 |
39.4 GB/s | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 7 5800X3D is 105 W, while the AMD EPYC 7281 has a TDP of 170 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD EPYC 7281 |
105 W | TDP (PL1 / PBP) | 170 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
90 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 7 5800X3D is manufactured in 7 nm and has 100.00 MB cache. The AMD EPYC 7281 is manufactured in 14 nm and has a 32.00 MB cache. |
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AMD Ryzen 7 5800X3D | Characteristic | AMD EPYC 7281 |
7 nm | Technology | 14 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
AM4 (PGA 1331) | Socket | SP3 |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Linux |
Q4/2020 | Release date | Q3/2017 |
449 $ | Release price | 625 $ |
show more data | show more data | |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
8C 16T @ 4.20 GHz |
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AMD EPYC 7281
16C 32T @ 2.70 GHz |
AMD Ryzen 7 5800X3D
15,125 CB R23 MC @ 96 W |
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AMD EPYC 7281
2.20 GHz |
Devices using this processor |
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AMD Ryzen 7 5800X3D | AMD EPYC 7281 |
Unknown | Unknown |